Question

from a point 13 ft from the base of a building the angle of elevation from the ground to the top of the building is 70 degrees which is closed to the height of the bulding ?
A) 12ft
B)23ft
C)36ft
D)41ft

Answer 1

#2

Answer 2

@LizzyLove<3 can u help me on this one?

Answer 3

yeah ill try... hold on

Answer 4

okay thank you :) sorry i just dont get it

Answer 5

Do u see the right angle and the 70degrees angle??

Answer 6

yes

Answer 7

Add those together, and if u know that a triangle is 180, the missing angle would be 30, right?

Answer 8

180 degrees*

Answer 9

oh yes so i add 70 + 90 ?

Answer 10

yea and u get...?

Answer 11

160

Answer 12

160 right?

Answer 13

okk yes.. good, now take 180 minus 160 and u get what?

Answer 14

yes
so it 20?

Answer 15

yeas but ur question says which is closest, so the answer would be 23ft u get it?

Answer 16

oh so i estamiate lol i dont now how to spell it okay wat about that 13 ft we dont use it?

Answer 17

it's just there to throw you off, like alot of problems are:) and yeas u do estimate, do u need anymore help?

Answer 18

oh okay :) so i just leave it and yes plz on another question wait

Answer 19

the angle from a point on the ground to the top of a 168 ft tower is 35 degrees

Answer 20

ok brb

Answer 21

a) sin 35 degrees =168/a
b)tan 55 degrees= 168/a
c) cos 35 =168/a
d) cos 55 =a/168

Answer 22

oh, now i feel bad because idk how to do sin, cos, or tan. i don't even know what they are!!:( SORRY

Answer 23

oh its okay so can u help me on another ?

Answer 24

yeah i can try:) Thxs btw

Answer 25

okay can u see wat i attach wat about #5? if u ant c it i can type it

Answer 26

ur welcome :D

Answer 27

yeah i can see wait one min:)

Answer 28

its C:)

Answer 29

can u plz explain im sorry i just want 2 know how 2 do it